PeerPnrpGetCloudInfo

// P2P.dll
#include <windows.h>

HRESULT PeerPnrpGetCloudInfo(
    DWORD* pcNumClouds,
    PEER_PNRP_CLOUD_INFO** ppCloudInfo
);

<DllImport("P2P.dll", ExactSpelling:=True)>
Public Shared Function PeerPnrpGetCloudInfo(
    <Out> ByRef pcNumClouds As UInteger,   ' DWORD* out
    ppCloudInfo As IntPtr   ' PEER_PNRP_CLOUD_INFO** out
) As Integer
End Function

' pcNumClouds : DWORD* out
' ppCloudInfo : PEER_PNRP_CLOUD_INFO** out
Declare PtrSafe Function PeerPnrpGetCloudInfo Lib "p2p" ( _
    ByRef pcNumClouds As Long, _
    ByVal ppCloudInfo As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PeerPnrpGetCloudInfo = ctypes.windll.p2p.PeerPnrpGetCloudInfo
PeerPnrpGetCloudInfo.restype = ctypes.c_int
PeerPnrpGetCloudInfo.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # pcNumClouds : DWORD* out
    ctypes.c_void_p,  # ppCloudInfo : PEER_PNRP_CLOUD_INFO** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2P.dll')
PeerPnrpGetCloudInfo = Fiddle::Function.new(
  lib['PeerPnrpGetCloudInfo'],
  [
    Fiddle::TYPE_VOIDP,  # pcNumClouds : DWORD* out
    Fiddle::TYPE_VOIDP,  # ppCloudInfo : PEER_PNRP_CLOUD_INFO** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "p2p")]
extern "system" {
    fn PeerPnrpGetCloudInfo(
        pcNumClouds: *mut u32,  // DWORD* out
        ppCloudInfo: *mut *mut PEER_PNRP_CLOUD_INFO  // PEER_PNRP_CLOUD_INFO** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("P2P.dll")]
public static extern int PeerPnrpGetCloudInfo(out uint pcNumClouds, IntPtr ppCloudInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2P_PeerPnrpGetCloudInfo' -Namespace Win32 -PassThru
# $api::PeerPnrpGetCloudInfo(pcNumClouds, ppCloudInfo)

#uselib "P2P.dll"
#func global PeerPnrpGetCloudInfo "PeerPnrpGetCloudInfo" sptr, sptr
; PeerPnrpGetCloudInfo varptr(pcNumClouds), varptr(ppCloudInfo)   ; 戻り値は stat
; pcNumClouds : DWORD* out -> "sptr"
; ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	p2p = windows.NewLazySystemDLL("P2P.dll")
	procPeerPnrpGetCloudInfo = p2p.NewProc("PeerPnrpGetCloudInfo")
)

// pcNumClouds (DWORD* out), ppCloudInfo (PEER_PNRP_CLOUD_INFO** out)
r1, _, err := procPeerPnrpGetCloudInfo.Call(
	uintptr(pcNumClouds),
	uintptr(ppCloudInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PeerPnrpGetCloudInfo(
  pcNumClouds: Pointer;   // DWORD* out
  ppCloudInfo: Pointer   // PEER_PNRP_CLOUD_INFO** out
): Integer; stdcall;
  external 'P2P.dll' name 'PeerPnrpGetCloudInfo';

result := DllCall("P2P\PeerPnrpGetCloudInfo"
    , "Ptr", pcNumClouds   ; DWORD* out
    , "Ptr", ppCloudInfo   ; PEER_PNRP_CLOUD_INFO** out
    , "Int")   ; return: HRESULT

●PeerPnrpGetCloudInfo(pcNumClouds, ppCloudInfo) = DLL("P2P.dll", "int PeerPnrpGetCloudInfo(void*, void*)")
# 呼び出し: PeerPnrpGetCloudInfo(pcNumClouds, ppCloudInfo)
# pcNumClouds : DWORD* out -> "void*"
# ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。

const std = @import("std");

extern "p2p" fn PeerPnrpGetCloudInfo(
    pcNumClouds: [*c]u32, // DWORD* out
    ppCloudInfo: [*c][*c]PEER_PNRP_CLOUD_INFO // PEER_PNRP_CLOUD_INFO** out
) callconv(std.os.windows.WINAPI) i32;

proc PeerPnrpGetCloudInfo(
    pcNumClouds: ptr uint32,  # DWORD* out
    ppCloudInfo: ptr PEER_PNRP_CLOUD_INFO  # PEER_PNRP_CLOUD_INFO** out
): int32 {.importc: "PeerPnrpGetCloudInfo", stdcall, dynlib: "P2P.dll".}

pragma(lib, "p2p");
extern(Windows)
int PeerPnrpGetCloudInfo(
    uint* pcNumClouds,   // DWORD* out
    PEER_PNRP_CLOUD_INFO** ppCloudInfo   // PEER_PNRP_CLOUD_INFO** out
);

ccall((:PeerPnrpGetCloudInfo, "P2P.dll"), stdcall, Int32,
      (Ptr{UInt32}, Ptr{PEER_PNRP_CLOUD_INFO}),
      pcNumClouds, ppCloudInfo)
# pcNumClouds : DWORD* out -> Ptr{UInt32}
# ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> Ptr{PEER_PNRP_CLOUD_INFO}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t PeerPnrpGetCloudInfo(
    uint32_t* pcNumClouds,
    void* ppCloudInfo);
]]
local p2p = ffi.load("p2p")
-- p2p.PeerPnrpGetCloudInfo(pcNumClouds, ppCloudInfo)
-- pcNumClouds : DWORD* out
-- ppCloudInfo : PEER_PNRP_CLOUD_INFO** out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('P2P.dll');
const PeerPnrpGetCloudInfo = lib.func('__stdcall', 'PeerPnrpGetCloudInfo', 'int32_t', ['uint32_t *', 'void *']);
// PeerPnrpGetCloudInfo(pcNumClouds, ppCloudInfo)
// pcNumClouds : DWORD* out -> 'uint32_t *'
// ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("P2P.dll", {
  PeerPnrpGetCloudInfo: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.PeerPnrpGetCloudInfo(pcNumClouds, ppCloudInfo)
// pcNumClouds : DWORD* out -> "pointer"
// ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t PeerPnrpGetCloudInfo(
    uint32_t* pcNumClouds,
    void* ppCloudInfo);
C, "P2P.dll");
// $ffi->PeerPnrpGetCloudInfo(pcNumClouds, ppCloudInfo);
// pcNumClouds : DWORD* out
// ppCloudInfo : PEER_PNRP_CLOUD_INFO** out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface P2p extends StdCallLibrary {
    P2p INSTANCE = Native.load("p2p", P2p.class);
    int PeerPnrpGetCloudInfo(
        IntByReference pcNumClouds,   // DWORD* out
        Pointer ppCloudInfo   // PEER_PNRP_CLOUD_INFO** out
    );
}

@[Link("p2p")]
lib LibP2P
  fun PeerPnrpGetCloudInfo = PeerPnrpGetCloudInfo(
    pcNumClouds : UInt32*,   # DWORD* out
    ppCloudInfo : PEER_PNRP_CLOUD_INFO**   # PEER_PNRP_CLOUD_INFO** out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef PeerPnrpGetCloudInfoNative = Int32 Function(Pointer<Uint32>, Pointer<Void>);
typedef PeerPnrpGetCloudInfoDart = int Function(Pointer<Uint32>, Pointer<Void>);
final PeerPnrpGetCloudInfo = DynamicLibrary.open('P2P.dll')
    .lookupFunction<PeerPnrpGetCloudInfoNative, PeerPnrpGetCloudInfoDart>('PeerPnrpGetCloudInfo');
// pcNumClouds : DWORD* out -> Pointer<Uint32>
// ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PeerPnrpGetCloudInfo(
  pcNumClouds: Pointer;   // DWORD* out
  ppCloudInfo: Pointer   // PEER_PNRP_CLOUD_INFO** out
): Integer; stdcall;
  external 'P2P.dll' name 'PeerPnrpGetCloudInfo';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "PeerPnrpGetCloudInfo"
  c_PeerPnrpGetCloudInfo :: Ptr Word32 -> Ptr () -> IO Int32
-- pcNumClouds : DWORD* out -> Ptr Word32
-- ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let peerpnrpgetcloudinfo =
  foreign "PeerPnrpGetCloudInfo"
    ((ptr uint32_t) @-> (ptr void) @-> returning int32_t)
(* pcNumClouds : DWORD* out -> (ptr uint32_t) *)
(* ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library p2p (t "P2P.dll"))
(cffi:use-foreign-library p2p)

(cffi:defcfun ("PeerPnrpGetCloudInfo" peer-pnrp-get-cloud-info :convention :stdcall) :int32
  (pc-num-clouds :pointer)   ; DWORD* out
  (pp-cloud-info :pointer))   ; PEER_PNRP_CLOUD_INFO** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $PeerPnrpGetCloudInfo = Win32::API::More->new('P2P',
    'int PeerPnrpGetCloudInfo(LPVOID pcNumClouds, LPVOID ppCloudInfo)');
# my $ret = $PeerPnrpGetCloudInfo->Call($pcNumClouds, $ppCloudInfo);
# pcNumClouds : DWORD* out -> LPVOID
# ppCloudInfo : PEER_PNRP_CLOUD_INFO** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。